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压裂改造技术已成为低渗透油田开发的主要手段,也是低渗透油田稳产的重要保障,在增油方面与其他技术相比,有着明显优势。随着油田开发的不断深入,以及储层改造的对象变得越来越复杂,压裂技术必须与井网特点紧密结合,以改善注采关系为重点,多种配套措施结合应用,实现区块整体改造,从而有效提高水驱采收率。以处于开发后期的扶余油田为实验对象,分析压裂技术在高含水老油田的实施效果,并对现存的瓶颈问题开展技术攻关,探索压裂技术未来的发展方向。提出压裂改造技术与注采井网相结合;研究合理的压裂周期,提高油层导流能力;采取压裂和调剖、堵水、分采等多项措施技术配套应用,综合调整区块的注采矛盾,实现剩余可采储量的有效动用;发展特殊工艺井压裂技术,对疑难井挖潜等措施,为扶余油田产能建设目标的顺利实现提供技术保证。
Fracturing technology has become the main means of low permeability oilfield development, but also an important guarantee for stable production of low permeability oilfield, compared with other technologies in the oil has obvious advantages. With the deepening of oilfield development and the object of reservoir reconstruction becoming more and more complicated, the fracturing technology must be closely integrated with the features of the well pattern, with the focus on improving the relationship between injection and production. A variety of supporting measures are combined to realize the block The overall transformation, so as to effectively improve waterflood recovery. Taking the Fuyu oil field in the late stage of development as an experimental object, the effect of fracturing technology in high-water-cut old oilfields is analyzed, and the existing bottlenecks are explored to explore the future development of fracturing technology. Proposed fracturing technology combined with injection well pattern; study the reasonable fracturing cycle, improve the ability of diversion; take fracturing and profile control, water shut-off, mining and other measures to support the application of technology, comprehensive adjustment of the block The contradiction between the injection and production of residual oil reserves to achieve the effective use of residual recoverable reserves; the development of a special well fracturing technology, difficult wells to tap potential and other measures for the Fuyu oil production capacity to achieve construction goals to provide technical assurance.